Pipe-coupling.



199211919212911)k AUG. 1, 1995.v A. T. HERRIGK. PIPE coUPLING. APPLIGATIUN FILED sng'r. 15, 1904.

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Be it known that LAUSTIN T. HERRICK, a'-

`bevelface11. the usual radially-exten'dingl lugs12, between STATES. ,PATENT-*3 OFFICE;

-' i AUSTIN T. 'HERRIQKLOE BRADFRD, PENNsYLvANiA;

citizen of the United States, residing at Bradford, county of McKean, State of. Pennsylvania, have invented certain new and useful Improvements in Pipe-Couplings, of which the following is a specification.

.In the drawings, Figure lis a-longitudinal sectional'view of a pipe-coupling embodying my inventiom' :Fig 2 lis a view of the same parts segregated. Eig. 3 isa transverse sec- -tional view on the line?, 3, Fig. 1, looking in v the directionof; the arrow.

t represents the pipe. p s

s' is the sleeve,v within which the ends ofthe, pipe "areadaptedto enter, said sleeve being provided With a T-shaped annular projection 6 on its interior,"positioned about inthe centerthereof, the diameter between' the heads of the T-shaped projectionbeing equal to the diam eter ofthe ends of the pipe 4, the ends of said pipe restingl upon the head of the T- y j 'shaped projection and abuttingthe'stem ofthe T-,shaped projectiomgas shown inl Fig. 1. The

ends of the sleeve are provided with an inte- Arior' and exterior bead 7,' substantially wedgeshapedmcross-section, as moreclearly shown .1nFg.2`.f

The'collars'are proyid'edwith an annular j: laterallyextending flange V9,l the interior bore of -whichis slightly tapering, as clearly shown lin Fig.' 2, atthe bottom ofv which taperis orrr'ledfa shoulder 10,- from which extends a .l The collar 'is provided with which-.the bolts .13 arefs'ec'ured. *It will be understood that vthese lugs may b e perforated* instead of being arranged in pairs, as shown. in the present drawings.

The'resilient packing-ring 14 maybe of any suitable 'materialTsuch as rubber, cork, &c.- but is for purposes of illustration shown as- I being composed of rubber," said-ring being provided with va straight annular bore 15,-

' '.while its exterior periphery is slightly wedge- Shaped or tapering in order to insure the tight i packing within the tapering annular flange 9 `of the collar.

l#'16 is a laterally-extending iange integral ywith` the packing-ring '14 and of half- V or v wedge-shape in crosssection-,and adapted to be'seated upon-theI bevel-face or seat 11 of i 'the collar The Pack--Dg-Tig iS D-FOVded with a Vfshaped annular groove 17, terminatingin an elliptical or double wedge -shaped Specification of Letters Patent.

applicati@ tied september 15,1904. serial No'. 224,523.

the Asleeve 5v.

noted that thegroove formedof the combined' s PIPE-coupures..

' Patented Au`g.'1,-19o5.

'groove 19 at its lower 'end -and adapted to receive the wedge-shaped beads 7 on the end of 1n this connectio'n it will be grooves 17 and 19 terminates near the bottom of the packing-ring, thus kproviding for the packing of the major portion of the length of Vt he ring around thepipe and sleeve, thus insurfing a large area for friction between the "packing-ring, the pipe, the collar,.and the sleeve, whereby the strength of the joint is Avery materially Vincreased and enabling the joint to withstand the maximum pressure.

Upon examining Fig. 1 'it Will be noted that the pipe has a-solid bearing of metal withinthe collar'and upon the head of the T-shaped lug withinthe sleeve, thus holding the pipe in alinement at the joint.

In assembling the parts the ends of the pipe are slid into'the sleeve.- The packing-ring and the collars 'are then moved up upon the sleeve, the ends of thesleeve--entering the groove in the packing-ring, and upon manipulation of the nuts on t-he` bolts 13 the endsof the sleeve are forced tothe bottom of the lgroove in the packing-ring, whereby the packing-ring is trmlywedged in the bevel-seat 11'. the "tapering bowl of. the collar, and around the pipe/ The tighter the nuts are'dr'awn the greater will be the compression oflthef packing-ring and the closer the joint..

I havenot herein claimed the packing-ring having an enlargement at the basejof the annular groove,' as thislfeature isclaimed in my ,copending application, filed September 15, 1904:, Serial No. 224,521.

Having thus described the invention, what I- claim, and desire to secure by Letters Patent, vis' f1. 1n a pipe-coupling, the combination with the annular sleeve having'a T-shaped annular projectionjformed on `its interior face', near the centerthereof and enlarged beads at its ends, of collars having enlarged bores, 'and packing-rings fitted within the collars, .having annular grooves into which the beaded ends 3. A pao'kingring having a shoulder'inter-l mediate its ends, an annular groove on one side' of the shoulder, and an annular wedge-shaped portion on the other side of the shoulder.

4. A packing-ring having a shoulder intermediate its ends, an annular groove on one side of the shoulder, and an annular wedge-shaped portion on the other side of the shoulder, the inner Wall of the Wedge-shaped portion being in alinernent with the inner wall of the ring.

5. A packing-ring provided with an annular Wedge shaped groove and an enlarged elliptical groove at the base of the wedge-shaped groove.

. 6i A packing-ring provided with a shoulder intermediate lts ends; an ann ular groove on one side of the shoulder having a Wedge-shaped portion and an enlarged portion at the base of the Wedge-shaped portion; and an annular wedge-shaped portion on the other side of the shoulder, the inner Wall of the Wedge-shaped' portion being in alinement with the inner wall of the ring.

7. Ina pipe-coupling, the combination with and a tapering packing-ring having an annu-v lar wedge-shaped groove terminating in adouble wedge-shaped groove, and a wedge-shaped annular lug integral with the bottom of said ring.

The foregoing speciiieation signed this 12th day of September, 1904.

y yAUsTN fr. HERRIICK. In presence of- EDWIN S. CLARKsoN,

JNO. R. ADAMS. 

